R: Zero-inflated Negative Binomial Data Likelihood

loglik_zinb {hurdlr}

R Documentation

Zero-inflated Negative Binomial Data Likelihood

Data likelihood fuction for zero-inflated negative binomial model regression using zero_nb.

loglik_zinb(y, z, mu, size, p)

`y`	numeric response vector.
`z`	vector of binary operators. `z == 0` for observations considered belnging to the negative binomial distribution, `z == 1` for observations considered to be 'extra' zeros.
`mu`	current value for the negative binomial likelihood mu parameter.
`size`	size parameter for negative binomial distribution.
`p`	vector of 'extra' zero-count probabilities.

The log-likelihood of the zero-inflated negative binomial fit for the current iteration of the MCMC algorithm.

Taylor Trippe <ttrippe@luc.edu>
Earvin Balderama <ebalderama@luc.edu>